Draught in Boilers

Draught or Draft refers to the pressure difference between the burner and the atmosphere.  This pressure difference or draught causes the air to flow from the burner to the atmosphere.  The residue of combustion such as waste gases, soot, etc are carried away by the flow of air. Draught also has a great role to …

Package Boilers

A Package Boiler is a boiler that has its own burner.  It is small in capacity and is fired by gas or oil.  It has a short start-up time.  It is able to generate a large quantity of steam at high pressure and temperature. The Package Boiler can be used for different applications.  In some …

Carbon Dioxide in Boiler Water

Carbon Dioxide is a constituent of air.  As such it get dissolved in water.  Carbondioxide mixes with steam to form carbonic acid.  Carbonic acid is an unstable compound.  It has a tendency to react with steel and can thus corrode piping. Another way carbon is present in the water is in the form of bicarbonates.  …

Insulation in Boilers

Insulation in Boiler system is a critical piece of equipment.  It is factor which has a direct relationship with efficiency and cost.  Heat Energy is produced in the boiler.  This energy is transferred using steam as a medium throughout the system. Poor or damaged insulation can also result in condensate formation which can cause problems …

Surface Blowdown in Boiler

Surface Blowdown in boiler is carried out to remove dissolved substances at the surface of the water.  That is, it is used to remove impurities which are in the liquid or dissolved phase.  Impurities which are in solid phase precipitate to the bottom where they are removed by the bottom blowdown. The impurities and dissolved …